Who this is for
You've heard "service your AC once a year" and you're wondering if that's actually enough for Riyadh. Maybe you're in an Al Nakheel villa with 4–5 ACs running all summer, or in an Al Worood apartment that's never been professionally cleaned since you moved in.
Why annual service is not enough here
The typical family in north Riyadh runs their split ACs from March through October — roughly 8 months. During peak summer, those ACs run 18–20 hours a day. That's approximately 4,000 operating hours per year per unit. The "annual service" guideline was written for markets where the same AC logs 800–1,000 hours per year. You're running five times that. And Riyadh's fine desert dust clogs filters 3–4 times faster than urban dust in temperate cities.
The schedule that actually works
Every 3–4 weeks: Clean the filter yourself (free, 10 minutes)
Pull the filter out of your indoor unit, rinse under running water until it runs clear, air-dry for 30–45 minutes, put it back. Don't use a hair dryer — heat warps the plastic frame. During shamal season (February–April and September), do this every 2 weeks. I've opened filters in Al Nakheel villas in early March that were completely black after 10 days from a single sandstorm.
Every 3–4 months: Professional deep clean (SAR 89–99)
The filter handles large particles. Fine dust penetrates through to the indoor coil fins over months. Mold grows on that dust — condensation drips over the coil constantly and mold spores in the dust thrive. After 4–6 months, you need a chemical coil flush, drain line clean, and blower fan clean. The recommended Riyadh deep-clean schedule: February (pre-summer), June (mid-summer), October (end of season).
The electricity saving covers the cost within weeks. A dirty AC uses 15–30% more electricity. Running 3 ACs in an Al Nakheel villa with a SAR 1,200/month SEC bill? Three deep cleans (SAR 297 total) saves SAR 180–360 per month. Pays for itself in under a month.
Once a year (February): Gas pressure check
A properly installed AC shouldn't lose gas — but Riyadh's heat cycles gradually create micro-cracks at pipe joints. An annual pressure check takes 15 minutes. The critical timing: do this in February, not July when your AC is struggling and every technician is booked weeks out.
Call same-day for these — don't wait
Frost on the copper pipe. Water dripping from the indoor unit. Burning smell. Circuit breaker tripping. New grinding or rattling sound. Cooling dropped noticeably in the last week. Each of these gets significantly more expensive the longer you leave it.
The Riyadh AC calendar
What skipping service actually costs
2 months without filter cleaning: 15–25% efficiency drop. That's SAR 100–250/month extra on the SEC bill for a typical Al Nakheel villa with 3–4 ACs. 6 months without deep clean: mold on the indoor coil blown into your home's air every time the AC runs. 12 months: drain line blocks — water backs up and drips from the unit into your wall cavity. I've seen this cause SAR 5,000–15,000 of wall damage in Al Sahafa villas. 2+ years: compressor running hot and dirty — the conditions that lead to SAR 1,200+ compressor replacements, almost always preventable.
Ready to get on the right schedule?
SAR 99 per split AC. Same-day in Al Nakheel, Al Sahafa, Al Worood, and all of north Riyadh.